Feeding device for furnaces.



PATENTED JUNE 9, 1908.

U. WEDGE. FEEDING DEVICE FOR FURNACES.

APPLICATION FILED AUG. 6

UNITED sTATEs PATENT OFFICE.

UTLEY WEDGE, OF AR-DMORE, PENNSYLVANIA.

FEEDING- DEVICE non FURNACES.

Specification of Letters Patent. I firiginal application filed etober-24, 1906, Serial No; 340,347. Dividedand this application filed August 5, 1907.

Patented June 9, 1908.

Serial No. 387,243..

To'all whom it may concern:

on of the United States, residing in'Arch more, Pennsylvanla, have invented certain nac'es, the same being a division of my applification.

. The object I attain in theman'ner herein after set forth, reference-being had to the accompanying drawing, in which Figure 1 1s a vertical sectional view of 'suf ficientof theupper portion of a roasting furshown in the drawing roasting chamber 1 surrounding a central shaft 2, of relatively large diameter, sheathed gest, and rotary which arenormally I I means of cone valves 10 but which, when nace to illustrate the construction of the feeding devicestherefor in accordance with my invention g Fig. 2 is a view, partly in side elevation, and partly in section, on the line a-a, Fig. 1, and-Fig. 3 is an enlarged view, partly in elevation and partly in section, of oneof-the elementsof the feeding device.

be similar to those in common use, that having an annular or incased in blocks 3 of refractory material, the furnace having as many of theseroasting' chambers, 1, located one above another, as the desired capacity of the furnace maysu motion being imparted ,to

the central shaft 2 in any desirable way.

Each of the roasting chambers 1 of the furnace isequipped with a pair of stirrer arms 4, rigidly secured to the central rotating shaft 2, and provided with depending vanes, blades or agitatingthe material under treatment lying upon the floor .or hearth of; the ,furnace c iamber.

Above the roof of the furnace is an annular trough 7, which receives the material to be fed to the furnace, this trough having, at any desired points, depending necks 9 closed at the bottom by.

'Be it-known that I, UrLEY Wnncn, acid-- Improvements in FeedingDevices for-Fun- Letters Patent No.

provide for the-ready regugoverning the individual In its general structure the furnace may:

the feed of material to the furnace being rabbles 6 for stirring or the action of the lug 13 said valves are open, discharge into the up .permost or primary chamber of the furnace. Each valve 10 is suspended from a lever 11 suitably mountedin the trough 7, the preponderance of weight on this lover tending to maintain thevalve in'the closed position, but projecting arms 12 on'the upper portion of the shaft 2 have depending lugs 13,

' whiclnby contact .with the levers 11, de-

press the same and temporarily open the valves 10;

The lugs 13 are preferably arm 12, as shown in Fig. 3, so plane transverse to thedirection of movement ofthe arm, and, when it is. not desired to operate the valves 10, said lugs can be turned up through slots 15 in the flange of the. arm and adjusted to the position shown by dotted lines in said figure.

Each lug 13, when depending from its carrier arm, acts upon a third arm 16 of the pivoted to each lines in Fig. 2, so that it can be removed. when it is desired to arrest the operation of the valve 10 corresponding to said lever, two co-acting means being thus provided for regulating the operation of the valves, one valves and the other governing the number o ftimes the operative "valves will be opened on each rotation of the shaft 2, are eight valves and the shaft 2 has four arms any number ofvalves from one to ,elght may be operated and the valves which are inoperation may be ,operated from one to four times on each rotation of the shaft-2, thus accurately regulated to accord with the capacity of the same under varying conditions of working.

A chain 17 connects the arm 16 and the lever 11 and prevents loss of the arm when it has been removed from its socket in the, lever.

' The arms 12 may, as in the feeding device forming the subject of my former patent, carry stirring and feeding blades tending to agitate the mass of material in' the trough 7. and feed the same forwardly to the de pending necks 9 of the trough, the action of the blades of each arm following so closely upon the lever arm. 16 that fresh material will be fed into each as to swing in a .lever 11, and said arm-is detachably fitted to 'a socket on the lever, as shown by dotted If, for instance, there movable'arm above the receptacle, and a lever-actuating lug mounted upon said arm and movable thereupon into operative or inoperative position.

2. The combination of a furnace with a receptacle above the same having an outlet communicating with the treating chamber of the furnace, a valve closing said outlet, a lever from which said valve is sus ended, a movable arm above the receptac e, anda' lever-actuating lug pivotally mountedupon said arm.

3. The combination of a furnace with a receptacle above the same having an outlet communicating with the treating chamber of the furnace, a valve closing said outlet,'a' lever from which said valve is sus ended, a movable arm above the receptac e, and a lever-actuating lug pivoted to said arm so as to; swing in a plane transverse to the direction of movement of the arm.

vices therefor may 4. .The combination of afurnacewith a receptacle above the same having an outlet communicating with the treating chamber of the furnace, a valve closing said outlet, a valve carryingi lever having a detachable arm, .and a movable arm above the lever having a lugacting upon said detachable arm of the latter.

5. The combination of a furnace with a receptacle above the same, a plurality of passages from said receptacle to the furnace, valves for said passages, a plurality of devicesfor operating said'valves, "and means whereby the valves and the operating debe independently ren-' dered inoperative. f 6. The combination of afurnace with a receptacle above the same, a. plurality of passages from said receptacle tothefur nace, valves for said passages, devices for' o crating said valves, and means whereby eac valve and each operating device therefor may be rendered'inoperative independently of each of the others. In testimony whereof, I have signed my name to this specificatiomiri the presence'of two subscribing witnesses.

, UTLEY WEDGE v Witnesses:"

HAMILTON D. TURNER, KATE. A. BEADLE.

a plurality of 

